ceph: check unsupported fallocate mode

Signed-off-by: N Yan, Zheng <zheng.z.yan@intel.com>

ceph: check unsupported fallocate mode
Signed-off-by: N Yan, Zheng <zheng.z.yan@intel.com>
494d77bf · Yan, Zheng · Ilya Dryomov · 37ab77ac · 494d77bf
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fs/ceph/file.c fs/ceph/file.c +3 -0

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--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1177,6 +1177,9 @@ static long ceph_fallocate(struct file *file, int mode,
 	loff_t endoff = 0;
 	loff_t size;

+	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+		return -EOPNOTSUPP;
+
 	if (!S_ISREG(inode->i_mode))
 		return -EOPNOTSUPP;